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        <li class="header">第 Ⅰ 部分：PostGIS基础</li>
        
        
    
        <li class="chapter " data-level="1.1" data-path="../../">
            
                <a href="../../">
            
                    
                    Introduction
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2" >
            
                <span>
            
                    
                    一 初识PostGIS
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.2.1" data-path="../../introduction/PostgisAbility.html">
            
                <a href="../../introduction/PostgisAbility.html">
            
                    
                    1.1 PostGIS特性
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2.2" data-path="../../introduction/PostgisAbility.html">
            
                <a href="../../introduction/PostgisAbility.html">
            
                    
                    1.2 PostGIS使用场景
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.2.2.1" data-path="../../installation/PostgreSQL Installation.html">
            
                <a href="../../installation/PostgreSQL Installation.html">
            
                    
                    1.2.1 适用场景
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2.2.2" data-path="../../installation/PostGIS Installation.html">
            
                <a href="../../installation/PostGIS Installation.html">
            
                    
                    1.2.2 不适用场景
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.2.3" data-path="../../introduction/PostgisAbility.html">
            
                <a href="../../introduction/PostgisAbility.html">
            
                    
                    1.3 PostGIS使用建议
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2.4" >
            
                <span>
            
                    
                    1.4 PostGIS安装
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.2.4.1" data-path="../../installation/PostgreSQL Installation.html">
            
                <a href="../../installation/PostgreSQL Installation.html">
            
                    
                    1.4.1 PostgreSQL安装
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2.4.2" data-path="../../installation/PostGIS Installation.html">
            
                <a href="../../installation/PostGIS Installation.html">
            
                    
                    1.4.2 PostGIS安装
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.2.5" data-path="../../introduction/ReleaseNotes.html">
            
                <a href="../../introduction/ReleaseNotes.html">
            
                    
                    1.5 PostGIS重大版本
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.3" >
            
                <span>
            
                    
                    二 PostGIS入门
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.3.1" >
            
                <span>
            
                    
                    2.1 客户端介绍
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.3.1.1" >
            
                <span>
            
                    
                    2.1.1 psql
            
                </span>
            

            
        </li>
    
        <li class="chapter " data-level="1.3.1.2" >
            
                <span>
            
                    
                    2.1.2 qgis
            
                </span>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.3.2" >
            
                <span>
            
                    
                    2.2 空间数据库
            
                </span>
            

            
        </li>
    
        <li class="chapter " data-level="1.3.3" >
            
                <span>
            
                    
                    2.3 数据导入
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.3.3.1" >
            
                <span>
            
                    
                    2.3.1 shp
            
                </span>
            

            
        </li>
    
        <li class="chapter " data-level="1.3.3.2" >
            
                <span>
            
                    
                    2.3.2 csv
            
                </span>
            

            
        </li>
    
        <li class="chapter " data-level="1.3.3.3" >
            
                <span>
            
                    
                    2.3.3 excel
            
                </span>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="header">第 Ⅱ 部分：API手册</li>
        
        
    
        <li class="chapter " data-level="2.1" >
            
                <span>
            
                    
                    八 矢量函数
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.1" >
            
                <span>
            
                    
                    8.2 空间表管理
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.1.1" data-path="../TableManager/AddGeometryColumn.html">
            
                <a href="../TableManager/AddGeometryColumn.html">
            
                    
                    8.2.1 AddGeometryColumn
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.1.2" data-path="../TableManager/DropGeometryColumn.html">
            
                <a href="../TableManager/DropGeometryColumn.html">
            
                    
                    8.2.2 DropGeometryColumn
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.1.3" data-path="../TableManager/DropGeometryTable.html">
            
                <a href="../TableManager/DropGeometryTable.html">
            
                    
                    8.2.3 DropGeometryTable
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.1.4" data-path="../TableManager/Find_SRID.html">
            
                <a href="../TableManager/Find_SRID.html">
            
                    
                    8.2.4 Find_SRID
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.1.5" data-path="../TableManager/Populate_Geometry_Columns.html">
            
                <a href="../TableManager/Populate_Geometry_Columns.html">
            
                    
                    8.2.5 Populate_Geometry_Columns
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.1.6" data-path="../TableManager/UpdateGeometrySRID.html">
            
                <a href="../TableManager/UpdateGeometrySRID.html">
            
                    
                    8.2.6 UpdateGeometrySRID
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.2" >
            
                <span>
            
                    
                    8.4 元数据读写
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.2.1" data-path="../Accessors.html">
            
                <a href="../Accessors.html#GeometryType">
            
                    
                    GeometryType
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.2" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_GeometryType">
            
                    
                    ST_GeometryType
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.3" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_CoordDim">
            
                    
                    ST_CoordDim与ST_NDims
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.4" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Dimension">
            
                    
                    ST_Dimension
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.5" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Zmflag">
            
                    
                    ST_Zmflag
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.6" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_HasArc">
            
                    
                    ST_HasArc
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.7" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsPolygonCCW">
            
                    
                    ST_IsPolygonCCW
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.8" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsPolygonCW">
            
                    
                    ST_IsPolygonCW
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.9" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsClosed">
            
                    
                    ST_IsClosed
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.10" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsCollection">
            
                    
                    ST_IsCollection
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.11" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsEmpty">
            
                    
                    ST_IsEmpty
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.12" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsRing">
            
                    
                    ST_IsRing
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.13" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_IsSimple">
            
                    
                    ST_IsSimple
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.14" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Boundary">
            
                    
                    ST_Boundary
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.15" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Envelope">
            
                    
                    ST_Envelope
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.16" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_BoundingDiagonal">
            
                    
                    ST_BoundingDiagonal
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.17" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_X">
            
                    
                    ST_X,ST_Y,ST_Z,ST_M
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.18" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_StartPoint">
            
                    
                    ST_StartPoint,ST_EndPoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.19" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_NumGeometries">
            
                    
                    ST_NumGeometries,ST_GeometryN
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.20" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_NRings">
            
                    
                    ST_NRings,ST_ExteriorRing,ST_NumInteriorRings,ST_NumInteriorRing,ST_InteriorRingN
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.21" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_NumPatches">
            
                    
                    ST_NumPatches,ST_PatchN
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.22" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_NPoints">
            
                    
                    ST_NPoints,ST_NumPoints,ST_PointN,ST_Points
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.23" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_MemSize">
            
                    
                    ST_MemSize
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.24" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Summary">
            
                    
                    ST_Summary
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.2.25" data-path="../Accessors.html">
            
                <a href="../Accessors.html#ST_Dump">
            
                    
                    ST_Dump,ST_DumpPoints,ST_DumpRings
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.3" >
            
                <span>
            
                    
                    8.11 空间关系
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.3.1" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Intersects">
            
                    
                    ST_Intersects
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.2" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Intersects">
            
                    
                    ST_Disjoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.3" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Contains">
            
                    
                    ST_Contains
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.4" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Contains">
            
                    
                    ST_Within
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.5" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Equals">
            
                    
                    ST_Equals
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.6" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_ContainsProperly">
            
                    
                    ST_ContainsProperly
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.7" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Covers">
            
                    
                    ST_Covers
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.8" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Covers">
            
                    
                    ST_CoveredBy
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.9" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Overlaps">
            
                    
                    ST_Overlaps
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.10" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Overlaps">
            
                    
                    ST_Crosses
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.11" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Touches">
            
                    
                    ST_Touches
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.12" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_Relate">
            
                    
                    ST_Relate
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.3.13" data-path="../SpatialRelationships.html">
            
                <a href="../SpatialRelationships.html#ST_RelateMatch">
            
                    
                    ST_RelateMatch
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.4" >
            
                <span>
            
                    
                    8.12 空间测量
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.4.1" data-path="../Measurement/ST_3DClosestPoint.html">
            
                <a href="../Measurement/ST_3DClosestPoint.html#ST_3DClosestPoint">
            
                    
                    ST_3DClosestPoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.2" data-path="../Measurement/ST_3DDistance.html">
            
                <a href="../Measurement/ST_3DDistance.html">
            
                    
                    ST_3DDistance
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.3" data-path="../Measurement/ST_Angle.html">
            
                <a href="../Measurement/ST_Angle.html">
            
                    
                    ST_Angle
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.4" data-path="../Measurement/ST_Area.html">
            
                <a href="../Measurement/ST_Area.html">
            
                    
                    ST_Area
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.5" data-path="../Measurement/ST_Azimuth.html">
            
                <a href="../Measurement/ST_Azimuth.html">
            
                    
                    ST_Azimuth
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.6" data-path="../Measurement/ST_ClosestPoint.html">
            
                <a href="../Measurement/ST_ClosestPoint.html">
            
                    
                    ST_ClosestPoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.7" data-path="../Measurement/ST_Distance.html">
            
                <a href="../Measurement/ST_Distance.html">
            
                    
                    ST_Distance
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.4.8" data-path="../Measurement/ST_Project.html">
            
                <a href="../Measurement/ST_Project.html">
            
                    
                    ST_Project
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.5" >
            
                <span>
            
                    
                    8.14 仿射变换
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.5.1" data-path="../AffineTransformations/ST_Affine.html">
            
                <a href="../AffineTransformations/ST_Affine.html#ST_Affine">
            
                    
                    ST_Affine
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.2" data-path="../AffineTransformations/ST_Rotate.html">
            
                <a href="../AffineTransformations/ST_Rotate.html">
            
                    
                    ST_Rotate
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.3" data-path="../AffineTransformations/ST_RotateX.html">
            
                <a href="../AffineTransformations/ST_RotateX.html">
            
                    
                    ST_RotateX
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.4" data-path="../AffineTransformations/ST_RotateY.html">
            
                <a href="../AffineTransformations/ST_RotateY.html">
            
                    
                    ST_RotateY
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.5" data-path="../AffineTransformations/ST_RotateZ.html">
            
                <a href="../AffineTransformations/ST_RotateZ.html">
            
                    
                    ST_RotateZ
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.6" data-path="../AffineTransformations/ST_Scale.html">
            
                <a href="../AffineTransformations/ST_Scale.html">
            
                    
                    ST_Scale
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.7" data-path="../AffineTransformations/ST_Translate.html">
            
                <a href="../AffineTransformations/ST_Translate.html">
            
                    
                    ST_Translate
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5.8" data-path="../AffineTransformations/ST_TransScale.html">
            
                <a href="../AffineTransformations/ST_TransScale.html">
            
                    
                    ST_TransScale
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.6" >
            
                <span>
            
                    
                    8.15 空间聚类
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.6.1" data-path="../Clustering.html">
            
                <a href="../Clustering.html#ST_ClusterDBSCAN">
            
                    
                    ST_ClusterDBSCAN
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.6.2" data-path="../Clustering.html">
            
                <a href="../Clustering.html#ST_ClusterIntersecting">
            
                    
                    ST_ClusterIntersecting
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.6.3" data-path="../Clustering.html">
            
                <a href="../Clustering.html#ST_ClusterKMeans">
            
                    
                    ST_ClusterKMeans
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.6.4" data-path="../Clustering.html">
            
                <a href="../Clustering.html#ST_ClusterWithin">
            
                    
                    ST_ClusterWithin
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.1.7" >
            
                <span>
            
                    
                    8.16 线性参考
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1.7.1" data-path="ST_LineInterpolatePoint.html">
            
                <a href="ST_LineInterpolatePoint.html">
            
                    
                    ST_LineInterpolatePoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.2" data-path="ST_3dLineInterpolatePoint.html">
            
                <a href="ST_3dLineInterpolatePoint.html">
            
                    
                    ST_3dLineInterpolatePoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.3" data-path="ST_LineInterpolatePoints.html">
            
                <a href="ST_LineInterpolatePoints.html">
            
                    
                    ST_LineInterpolatePoints
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.4" data-path="ST_LineLocatePoint.html">
            
                <a href="ST_LineLocatePoint.html">
            
                    
                    ST_LineLocatePoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.5" data-path="ST_LineSubstring.html">
            
                <a href="ST_LineSubstring.html">
            
                    
                    ST_LineSubstring
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.6" data-path="ST_LocateAlong.html">
            
                <a href="ST_LocateAlong.html">
            
                    
                    ST_LocateAlong
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.7" data-path="ST_LocateBetween.html">
            
                <a href="ST_LocateBetween.html">
            
                    
                    ST_LocateBetween
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.8" data-path="ST_LocateBetweenElevations.html">
            
                <a href="ST_LocateBetweenElevations.html">
            
                    
                    ST_LocateBetweenElevations
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.9" data-path="ST_InterpolatePoint.html">
            
                <a href="ST_InterpolatePoint.html">
            
                    
                    ST_InterpolatePoint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7.10" data-path="ST_AddMeasure.html">
            
                <a href="ST_AddMeasure.html">
            
                    
                    ST_AddMeasure
            
                </a>
            

            
        </li>
    
        <li class="chapter active" data-level="2.1.7.11" data-path="examples.html">
            
                <a href="examples.html">
            
                    
                    综合案例
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="header">第 Ⅲ 部分：PostGIS++</li>
        
        
    

    
        
        <li class="header">第 Ⅳ 部分：常见问题</li>
        
        
    

    

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                                <h2 id="&#x80CC;&#x666F;">&#x80CC;&#x666F;</h2>
<blockquote>
<p>&#x5728;&#x5BF9;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#x51FD;&#x6570;&#x8FDB;&#x884C;&#x7814;&#x7A76;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4E00;&#x76F4;&#x8BD5;&#x56FE;&#x627E;&#x4E00;&#x4E2A;&#x7EFC;&#x5408;&#x70B9;&#xFF08;&#x7CFB;&#x7EDF;&#x70B9;&#xFF09;&#x7684;&#x4F7F;&#x7528;&#x6848;&#x4F8B;&#x3002;&#x4F46;&#x662F;&#x5F88;&#x53EF;&#x60DC;&#x5728;&#x6211;&#x4EE5;&#x5F80;&#x7684;&#x5DE5;&#x7A0B;&#x7ECF;&#x9A8C;&#x91CC;&#x9762;&#x5F88;&#x5C11;&#x6709;&#x4F7F;&#x7528;&#x5230;&#x6B64;&#x7C7B;&#x51FD;&#x6570;&#x7684;&#x573A;&#x666F;&#xFF0C;&#x66F4;&#x4E3A;&#x7CFB;&#x7EDF;&#x7684;&#x4F7F;&#x7528;&#x5C31;&#x66F4;&#x52A0;&#x7A00;&#x5C11;&#x3002;&#x6211;&#x4E5F;&#x601D;&#x8003;&#x8FC7;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x8FD9;&#x4E2A;&#x770B;&#x8D77;&#x5F88;&#x9AD8;&#x7EA7;&#x7684;&#x7528;&#x6CD5;&#xFF0C;&#x4F46;&#x662F;&#x4F7F;&#x7528;&#x7684;&#x4EBA;&#x5F88;&#x5C11;&#x5462;&#xFF1F;&#x6211;&#x60F3;&#x65E0;&#x5916;&#x4E4E;&#x5C31;&#x662F;&#x4EE5;&#x4E0B;&#x51E0;&#x70B9;&#xFF1A;</p>
<ol>
<li>&#x5BF9;&#x6570;&#x636E;&#x7684;&#x8981;&#x6C42;&#xFF0C;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#x907F;&#x514D;&#x5BF9;&#x4E00;&#x4E2A;&#x6574;&#x4F53;&#x7684;&#x6570;&#x636E;&#x8FDB;&#x884C;&#x5207;&#x5206;&#x4FDD;&#x8BC1;&#x7684;&#x51E0;&#x4F55;&#x7684;&#x8FDE;&#x7EED;&#x6027;&#x3002;&#x4F46;&#x662F;&#x51E0;&#x4F55;&#x6570;&#x636E;&#x662F;&#x7531;&#x6D4B;&#x7ED8;&#x90E8;&#x95E8;&#x4E00;&#x6BB5;&#x4E00;&#x6BB5;&#x6D4B;&#x7ED8;&#x5F97;&#x6765;&#xFF0C;&#x672C;&#x8EAB;&#x5C31;&#x662F;&#x5206;&#x5F00;&#xFF08;&#x4E0D;&#x8FDE;&#x7EED;&#xFF09;&#x3002;&#x6240;&#x4EE5;&#x9700;&#x8981;&#x4F7F;&#x7528;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#xFF0C;&#x5C31;&#x9700;&#x8981;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x5904;&#x7406;&#x6210;&#x5408;&#x9002;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x8FD9;&#x9700;&#x8981;&#x6D4B;&#x7ED8;&#x4E0E;&#x6570;&#x636E;&#x751F;&#x4EA7;&#x90E8;&#x95E8;&#x79EF;&#x6781;&#x914D;&#x5408;&#xFF0C;&#x8FD9;&#x5C5E;&#x4E8E;&#x7B2C;&#x4E00;&#x9053;&#x574E;&#x3002;</li>
<li>&#x5F00;&#x53D1;&#x4EBA;&#x5458;&#x5927;&#x591A;&#x6570;&#x65F6;&#x5019;&#x90FD;&#x53EA;&#x662F;&#x54CD;&#x5E94;&#x4EA7;&#x54C1;&#x7ECF;&#x7406;&#x6216;&#x8005;&#x4E1A;&#x4E3B;&#x7684;&#x9700;&#x6C42;&#xFF0C;&#x800C;&#x672C;&#x8D28;&#x4E0A;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#x662F;&#x4E00;&#x79CD;&#x6570;&#x636E;&#x7ED3;&#x6784;&#xFF0C;&#x662F;&#x4E00;&#x79CD;&#x975E;&#x5E38;&#x5DE7;&#x5999;&#x7684;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x3002;&#x65E2;&#x7136;&#x662F;&#x6570;&#x636E;&#x7ED3;&#x6784;&#xFF0C;&#x90A3;&#x5C31;&#x5BF9;&#x4EA7;&#x54C1;&#x7ECF;&#x7406;&#x6216;&#x8005;&#x4E1A;&#x4E3B;&#x662F;&#x9694;&#x79BB;&#x7684;&#xFF0C;&#x4ED6;&#x4EEC;&#x662F;&#x4E0D;&#x77E5;&#x9053;&#x8FD9;&#x4E2A;&#x4E1C;&#x897F;&#x7684;&#xFF0C;&#x4ED6;&#x4EEC;&#x601D;&#x8003;&#x7684;&#x65F6;&#x5019;&#x90A3;&#x5C31;&#x4F9D;&#x7136;&#x7528;&#x719F;&#x6089;&#x7684;&#x65B9;&#x5F0F;&#x601D;&#x8003;&#xFF0C;&#x8FD9;&#x662F;&#x7B2C;&#x4E8C;&#x9053;&#x574E;&#x3002;</li>
<li>&#x5BF9;&#x4E8E;&#x5F00;&#x53D1;&#x4EBA;&#x5458;&#x6765;&#x8BF4;&#xFF0C;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#x4F7F;&#x7528;&#x7684;&#x8F83;&#x5C11;&#xFF0C;&#x79EF;&#x7D2F;&#x7684;&#x7ECF;&#x9A8C;&#x662F;&#x4E0D;&#x8DB3;&#x7684;&#xFF0C;&#x5BF9;&#x4E8E;&#x7CFB;&#x7EDF;&#x7684;&#x8BBE;&#x8BA1;&#x4E5F;&#x662F;&#x6709;&#x6311;&#x6218;&#x7684;&#x3002;&#x6240;&#x4EE5;&#x5F00;&#x53D1;&#x4EBA;&#x5458;&#x4E5F;&#x4F1A;&#x503E;&#x5411;&#x4E8E;&#x4E0D;&#x4F7F;&#x7528;&#x8BE5;&#x65B9;&#x6CD5;&#x3002;</li>
</ol>
</blockquote>
<h2 id="&#x6848;&#x4F8B;">&#x6848;&#x4F8B;</h2>
<h6 id="&#x573A;&#x666F;&#x63CF;&#x8FF0;">&#x573A;&#x666F;&#x63CF;&#x8FF0;</h6>
<blockquote>
<p>&#x7528;&#x7EBF;&#x6027;&#x53C2;&#x8003;&#x63CF;&#x8FF0;&#x9AD8;&#x901F;&#x516C;&#x8DEF;&#x91CC;&#x7A0B;&#x7684;&#x95EE;&#x9898;&#x3002;
<img src="http://localhost:4000/images/LinearReferencing/line1.png" alt=""></p>
<h6 id="1&#x3001;-&#x7EAF;&#x51E0;&#x4F55;">1&#x3001; &#x7EAF;&#x51E0;&#x4F55;</h6>
<p>&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x53EA;&#x63D0;&#x4F9B;&#x4E00;&#x6761;&#x51E0;&#x4F55;&#x7EBF;&#xFF0C;&#x6240;&#x6709;&#x91CC;&#x7A0B;&#x5168;&#x90E8;&#x662F;&#x6839;&#x636E;&#x51E0;&#x4F55;&#x7279;&#x6027;&#x8BA1;&#x7B97;&#x800C;&#x6765;&#x3002;&#x8FD9;&#x662F;&#x6700;&#x8212;&#x670D;&#x7684;&#x4E00;&#x4E2A;&#x4F7F;&#x7528;&#x573A;&#x666F;&#xFF0C;&#x5B8C;&#x5168;&#x662F;&#x51E0;&#x4F55;&#x903B;&#x8F91;&#x3002;&#x800C;&#x4E14;&#x8BA1;&#x7B97;&#x7ED3;&#x679C;&#x548C;&#x7406;&#x8BBA;&#x4E0A;&#x7684;&#x503C;&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x5728;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x662F;&#x5B8C;&#x5168;&#x662F;&#x6CA1;&#x95EE;&#x9898;&#x7684;&#x3002;</p>
</blockquote>
<pre class="language-"><code>with test_table as (select geom as line, ST_LineInterpolatePoint(geom,0.1) as point, st_length(geom::geography) as length from test_line)
select ST_InterpolatePoint(ST_AddMeasure(line,0,length),point),length/10 from test_table

-------
17465.740134863605  | 17465.740134864067
</code></pre><p><img src="http://localhost:4000/images/LinearReferencing/line2.png" alt=""></p>
<h6 id="2&#x3001;-&#x534A;&#x51E0;&#x4F55;">2&#x3001; &#x534A;&#x51E0;&#x4F55;</h6>
<p>&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x6761;&#x51E0;&#x4F55;&#x7EBF;&#x7684;&#x540C;&#x65F6;&#xFF0C;&#x4E5F;&#x63D0;&#x4F9B;&#x4E86;&#x8D77;&#x70B9;&#x7684;&#x91CC;&#x7A0B;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x8FD9;&#x4E2A;&#x91CC;&#x7A0B;&#x4E0D;&#x662F;&#x4ECE;0&#x5F00;&#x59CB;&#x3002;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x4E5F;&#x662F;&#x5BB9;&#x6613;&#x5904;&#x7406;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x5C06;ST_AddMeasure&#x51FD;&#x6570;&#x7684;&#x8F93;&#x5165;&#x7ED9;&#x8C03;&#x6574;&#x4E00;&#x4E0B;&#x5C31;OK&#x3002;</p>
<pre class="language-"><code>with test_table as (select geom as line, ST_LineInterpolatePoint(geom,0.1) as point, st_length(geom::geography) as length,ST_LineInterpolatePoint(geom,0) as point0 ,ST_LineInterpolatePoint(geom,1) as point1  from test_line)
select ST_InterpolatePoint(ST_AddMeasure(line,1000,length+1000),point),length/10,point from test_table
</code></pre><p><img src="http://localhost:4000/images/LinearReferencing/line3.png" alt=""></p>
<h6 id="3&#x3001;-&#x975E;&#x51E0;&#x4F55;">3&#x3001; &#x975E;&#x51E0;&#x4F55;</h6>
<p>&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x6761;&#x51E0;&#x4F55;&#x7EBF;&#x7684;&#x540C;&#x65F6;&#xFF0C;&#x4E5F;&#x63D0;&#x4F9B;&#x4E86;&#x8FD9;&#x6761;&#x7EBF;&#x7EC8;&#x6B62;&#x91CC;&#x7A0B;&#x548C;&#x5F00;&#x59CB;&#x91CC;&#x7A0B;&#x3002;&#x8FD9;&#x91CC;&#x5C31;&#x4F1A;&#x5B58;&#x5728;&#x4E00;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x63D0;&#x4F9B;&#x4E86;&#x91CC;&#x7A0B;&#x6570;&#x636E;&#x7684;&#x8BEF;&#x5DEE;&#x662F;&#x591A;&#x5C11;&#x3002;&#x8FD9;&#x5C31;&#x597D;&#x6BD4;&#x8981;&#x5C06;&#x4E00;&#x7C73;&#x8D4B;&#x7ED9;&#x4E00;&#x6761;90CM&#x7684;&#x7EF3;&#x5B50;&#xFF0C;&#x5728;&#x7EF3;&#x5B50;&#x4E0A;&#x7684;&#x8BA1;&#x7B97;&#x7ED3;&#x679C;&#x80AF;&#x5B9A;&#x662F;&#x6709;&#x8BEF;&#x5DEE;&#x7684;&#xFF0C;&#x800C;&#x8FD9;&#x4E2A;&#x8BEF;&#x5DEE;&#x5927;&#x5C0F;&#x7531;&#x5F00;&#x59CB;&#x91CC;&#x7A0B;&#x4E0E;&#x7EC8;&#x6B62;&#x91CC;&#x7A0B;&#x4EE5;&#x53CA;&#x957F;&#x5EA6;&#x4E09;&#x4E2A;&#x51B3;&#x5B9A;&#x7684;&#xFF0C;&#x8FD9;&#x4E2A;&#x8BEF;&#x5DEE;&#x5C31;&#x4E0D;&#x53EF;&#x63A7;&#x4E86;&#x3002;&#x5728;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#xFF0C;&#x8BEF;&#x5DEE;&#x8FD8;&#x4F1A;&#x88AB;&#x603B;&#x957F;&#x5EA6;&#x7ED9;&#x5E73;&#x5747;&#x6389;&#xFF0C;&#x4E0D;&#x4F1A;&#x9020;&#x6210;&#x8BEF;&#x5DEE;&#x7684;&#x53E0;&#x52A0;&#xFF0C;&#x8FD8;&#x662F;&#x80FD;&#x591F;&#x63A5;&#x53D7;&#x7684;&#x3002;</p>
<pre class="language-"><code>with test_table as (select geom as line, ST_LineInterpolatePoint(geom,0.1) as point, st_length(geom::geography) as length,ST_LineInterpolatePoint(geom,0) as point0 ,ST_LineInterpolatePoint(geom,1) as point1  from test_line)
select ST_InterpolatePoint(ST_AddMeasure(line,1000,length+200+1000),point),length/10,point from test_table
------------
18485.740134863605 | 17465.740134864067
</code></pre><h6 id="4&#x3001;&#x7EAF;&#x4E1A;&#x52A1;">4&#x3001;&#x7EAF;&#x4E1A;&#x52A1;</h6>
<p>&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x6570;&#x636E;&#x90E8;&#x95E8;&#x63D0;&#x4F9B;&#x7684;&#x662F;&#x4E00;&#x6761;&#x5E26;M&#x503C;&#x7684;&#x7EBF;&#xFF0C;&#x5982;&#x679C;&#x8FD9;&#x4E2A;M&#x503C;&#x7684;&#x51C6;&#x786E;&#x7684;&#x8BDD;&#xFF0C;&#x5B8C;&#x5168;&#x6309;&#x7167;M&#x503C;&#x53BB;&#x8BA1;&#x7B97;&#x8FD8;&#x662F;&#x7B26;&#x5408;&#x4E1A;&#x52A1;&#x7684;&#x3002;&#x4F46;&#x662F;&#x6211;&#x5C31;&#x9047;&#x5230;&#x8FC7;&#x8FD9;&#x6837;&#x7684;&#x60C5;&#x51B5;&#xFF0C;&#x5BF9;&#x65B9;&#x63D0;&#x4F9B;&#x7684;&#x6570;&#x636E;&#x672C;&#x8EAB;&#x81EA;&#x5E26;&#x9519;&#x8BEF;&#xFF08;&#x8BEF;&#x5DEE;&#x51E0;&#x5343;&#x7C73;&#xFF09;&#x3002;&#x8FD9;&#x5C31;&#x597D;&#x6BD4;&#x5C06;1&#x7C73;&#x8D4B;&#x7ED9;&#x4E00;&#x4E2A;60&#x91CC;&#x9762;&#x7684;&#x7EF3;&#x5B50;&#xFF0C;&#x7CDF;&#x7CD5;&#x7684;&#x662F;&#x8FD8;&#x8981;&#x4E00;&#x76F4;&#x53BB;&#x7EA0;&#x7ED3;&#x8BEF;&#x5DEE;&#x95EE;&#x9898;&#x3002;&#x800C;&#x7A0B;&#x5E8F;&#x662F;&#x57FA;&#x4E8E;&#x6570;&#x636E;&#x662F;&#x51C6;&#x786E;&#x7684;&#xFF08;&#x8BEF;&#x5DEE;&#x4E5F;&#x5728;&#x53EF;&#x63A5;&#x53D7;&#x8303;&#x56F4;&#xFF09;&#xFF0C;&#x6700;&#x7EC8;&#x7684;&#x8BA1;&#x7B97;&#x7ED3;&#x679C;&#x5DEE;&#x4E86;&#x5F88;&#x591A;&#x4E5F;&#x662F;&#x53EF;&#x4EE5;&#x80FD;&#x7406;&#x89E3;&#x7684;&#x3002;&#x4F46;&#x662F;&#x8FD9;&#x4E2A;&#x6570;&#x636E;&#x95EE;&#x9898;&#x53C8;&#x662F;&#x6BD4;&#x8F83;&#x96BE;&#x627E;&#x7684;&#xFF0C;&#x9700;&#x8981;&#x8DE8;&#x90E8;&#x95E8;&#x4E00;&#x4E2A;&#x4E00;&#x4E2A;&#x627E;&#x8FC7;&#x53BB;&#x3002;</p>
<pre class="language-"><code>with test_table as (select geom as line, ST_LineInterpolatePoint(geom,0.1) as point, st_length(geom::geography) as length,ST_LineInterpolatePoint(geom,0) as point0 ,ST_LineInterpolatePoint(geom,1) as point1  from test_line)
select ST_InterpolatePoint(line,point),length/10,point from test_table
---------
39565.59199126357 | 17465.740134864067
</code></pre><p><img src="http://localhost:4000/images/LinearReferencing/line4.png" alt=""></p>
<h2 id="&#x603B;&#x7ED3;">&#x603B;&#x7ED3;</h2>
<blockquote>
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